JP2005263482A - Stair elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stair elevator, that can be favorably installed on stairs having an angle change part such as a landing in the middle of the stairs or on top with inclination angle different from that of stair parts, in which an elevator unit and rail members can be composed in simple structure to reduce cost and shorten the delivery period while achieving feeling of safety for a user. <P>SOLUTION: To a first main rail member 46 and a second main rail member 47 installed to match the inclination angle of the stairs 2, a third main rail member 48 with a gentler inclination angle is connected at the angle change part 2C. A first adjusting rail member 49 and a second adjusting rail member 50 are combined, and either of a first attitude control roller 14 and a second attitude control roller 15 provided on the elevator unit 3 having angular difference transfers to the rail surface of the first adjusting rail member and the second adjusting rail member to roll. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a stair lifting device supported by a rail member installed along a stair, and a lifting unit that moves up and down. In particular, even in an angle changing unit having a different inclination angle such as a landing, the riding part of the lifting unit is substantially omitted. The present invention relates to a stair lifting device that moves up and down while maintaining a horizontal state.

  Now that we are facing an aging society, we will improve the welfare system and provide various measures that are safe for the elderly and disabled, mainly for public facilities, hospitals, and commercial facilities such as hotels, etc. Is planned. For example, at stations, etc., monorail stairlifts and elevators are installed on stairs, but all of these require enormous capital investment, so the scope of installation is limited to large urban stations. The penetration rate is very small. In some hospitals and nursing care facilities, there are chair-type monorails that run supported by rails installed along the walls of stairs and corridors.

  On the other hand, even in recent ordinary homes, for example, the so-called barrier-free response that eliminates the level difference inside the flat floor, the wide corridor that allows the wheelchair to run, the installation of stairs, toilets, or handrails in the bathroom, etc. Various measures are taken, and an example of installing a small elevator indoors is also introduced. However, in many ordinary homes, it is very expensive to install an elevator and a monorail device for raising and lowering stairs indoors, and it is extremely difficult to secure a space for installing these, and the penetration rate is extremely high. small.

  By the way, in heavy snow areas and the like, recently, many so-called high-floor houses with a floor surface several meters higher than the ground have been built as a countermeasure against snow accumulation. In a snowy country, even in an urban area, a snow-removing space is required around the house in order to lower the snow on the roof, and a large garage space is also required by owning several cars in the family. Therefore, in snowy countries, for example, high-floor houses that can use a semi-underground portion as a garage space are becoming more popular.

  In a high-floored house, of course, there are several steps or a dozen or more steps at the entrance, but an outer staircase is provided. In a high-floored house, although it is a small number of steps, it is necessary to ascend and descend the stairs every day, which imposes a heavy burden on the elderly and the disabled. In high-floor houses, every time an elderly person goes in and out of the house, he / she needs to be accompanied by someone who is a family member. For elderly people, for example, taking care of the garden, taking a daily walk or going out is extremely important for health management and is a great pleasure, but it has become a refusal to refrain from doing so due to inconvenience to the householders. It tends to be trapped.

  In addition, in a high-floor type house, there is a problem that the snow that has fallen on the entrance stairs freezes in winter and becomes slippery, and even a normal person often slips and causes a fall accident. In high-floor houses, it is possible to cope with this by installing a snow melting device on the entrance stairs. Furthermore, although it is desired to install some kind of stair lifting device in a high-floor type house, a stair lifting device suitable for general households has not been provided yet. Such a stair lift device can be installed indoors and used, and is easy to operate, installed by a simple method, requires almost no maintenance and is inexpensive. is there.

In view of such circumstances, the applicant has provided a suitable monorail type stair lifting device that is installed on the entrance staircase of a high-floor type house previously disclosed in Patent Document 1. This stair climbing device can be installed and used on the front staircases provided outdoors such as heavy snow areas, which are extremely difficult to install with the conventional indoor monorail stair climbing device. Will be able to ascend and descend the entrance stairs safely.
JP 2002-356286 A

  By the way, the entrance staircase has an inclination angle by designing the height of the kick-up, the width of the tread, or the number of steps based on the design of the entrance, the condition of the installation passage from the road to the entrance, the site area, etc. Be indexed. In addition, the entrance staircase is also provided with an angle changing unit having a slope different from that of the staircase by providing a landing in the middle. Therefore, the stair lift device has a problem that the rail member is produced and installed for each house according to the structure of the entrance staircase, which increases the cost and the construction period.

  Further, in the stair lifting device, the rail member is generally installed with an inclination angle that matches the inclination angle of the staircase with reference to the step end of the landing on the floor. As shown in FIG. 9, when the rail member 100 is installed on the staircase 110 provided with the landing 111 on the way, the rail member 100 is placed on the lower step side with the intermediate landing 111 placed therebetween. The first rail member 103 to be installed, the second rail member 104 to be installed on the upper step side, and the third rail member 103 and the second rail member 104 connected to each other to be installed on the landing 111. The rail member 105 is comprised.

  In the stair lifting device, the rail member 100 has the first rail member 103 and the second rail member 104 set to an inclination angle substantially equal to the inclination angle of the staircase 110, and the inclination angles of the steps 112a and 112b across the landing 102. The third rail member 105 is set to a substantially equal gentle inclination angle. In the stair lifting device, a lifting unit (not shown) set to an inclination angle substantially equal to the inclination angle and combined with the rail member 100 is supported by the rail member 100 to move up and down, but the third rail member 105 is moved up and down. In some cases, the posture changes and the user feels uneasy.

  In the stair lift device, for example, by providing a posture conversion mechanism in the lift unit, it is possible to cope with the position of the riding portion being held in a constant state even at a portion where the inclination angle of the rail member 100 changes. In the stair lift device, the posture conversion mechanism is a drive that converts a support mechanism such as a sensor that detects the inclination angle of the rail member 100 and a posture control roller that rolls the rail member according to the detection output of the sensor into an appropriate angle. It is configured by a mechanism or the like. Therefore, the stair lift device has a problem that the structure becomes complicated and expensive.

  Further, in the stair lifting device, in order to solve the above-described problem of the posture changing mechanism, for example, as shown in FIG. 10, the integrated rail member 120 is attached to the staircase 110 with reference to the step end 112a of the landing 112 on the floor. It is also possible to cope with such a situation that it is installed along a certain inclination angle over the entire length. However, in such a stair lifting device, the lower end 120a of the rail member 120 protrudes greatly from the downstairs landing 113 as shown in Fig. A, so the design of the entrance, the situation of the installation passage from the road to the entrance, the site area Depending on the conditions, etc., it may not be adopted. Further, in the stair lifting device, there are places where the rail member 120 is located at a position higher than the step surface in the middle, giving the user anxiety.

  Therefore, the present invention provides a stair lifting device that is suitably installed on an outdoor entrance staircase or the like of a high-floor type house. Proposed for the purpose of providing a stair lifting device that is suitable for installation on a certain staircase, and is designed to simplify the structure of the lifting unit and rail members to reduce cost and shorten delivery time and give the user a sense of security. Is.

  A stair lift device according to the present invention that achieves the above-described object includes a lift unit having a riding part and a carriage part, and a rail member that moves the lift unit in a straddling state in combination with a straddle, and a staircase is provided at an intermediate point. It is installed on a staircase provided with an angle changing part having a different inclination angle with respect to the part. In the stair lift device, the lift unit is combined with a carriage unit that moves up and down in combination with a rail member in a straddled state according to the inclination angle of the stair, and a horizontal posture with respect to this carriage unit. And a riding section.

  The stair lift device includes a motor, a drive gear rotated by the motor, a first posture control roller and a second posture control roller that roll on the rail surface of the rail member, a rail, A plurality of guide rollers that roll while sandwiching the side surface of the member are mounted. The stair lift device is disposed on the carriage unit with the first posture control roller and the second posture control roller spaced apart in the lift direction and with an angle difference corresponding to the inclination angle of the staircase, and the second posture on the upper side. The control roller includes a first roller portion and a second roller portion that are provided adjacent to each other in the axial direction.

  In the stair lifting device, the rail member includes a first main rail member to a third main rail member, a first adjustment rail member, and a second adjustment rail member. The first main rail member is formed with a first rack and a first main rail surface, and is installed on the lower stairs of the angle changing unit according to the inclination angle of the stairs. The second main rail member is formed with a second rack and a second main rail surface, and is installed on the upper stairs of the angle changing unit according to the inclination angle of the stairs. The third main rail member is formed with a third rack and a third main rail surface, and at a position corresponding to the angle changing portion, the third rack, the lower end portion of the third main rail surface, the first rack, and the first main rail member. The upper end of the rail surface is connected to the first main rail member such that the upper end of the rail surface is continuous with the upper end of the third rack, the upper end of the third main rail surface, the second rack, and the lower end of the second main rail surface, respectively. It is connected with the 2nd main rail member so that it may continue. The first adjustment rail member has a first adjustment rail surface having the same angle as the first main rail surface of the first main rail member, and a lower end portion is adjacent to the first main rail surface at a position corresponding to the angle changing portion. It is positioned so as to be combined and is combined with the side surface of the third main rail member. The second adjustment rail member is positioned such that the lower end portion is continuous with the first adjustment rail surface and the upper end portion is adjacent to the second main rail surface of the second main rail member at an upper position exceeding the angle changing portion. And a second adjustment rail surface extending in parallel and positioned above the third main rail surface, and is combined with the side surface of the third main rail member corresponding to the angle changing portion.

  In the stair lifting device according to the present invention configured as described above, the lifting unit is configured so that the drive gear and the first rack or the second rack mesh with each other and the first posture control roller and the first roller of the second posture control roller. Part rolls on the first main rail surface or the second main rail surface of the first main rail member or the second main rail member, and each guide roller moves the side surface of the first main rail member or the second main rail member. Roll up and down. In the stair lifting device, when the lifting unit reaches the angle changing portion, the drive gear is continuously from the first rack or the second rack of the first main rail member or the second main rail member, and the third main rail member third. While rotating in mesh with the rack, the first attitude control roller is also continuously connected from the first main rail surface or the second main rail surface of the first main rail member or the second main rail member to the third main rail member. Roll on the rail surface.

  In the stair lift device, the inclination angle with respect to the rail member is set so that the riding portion is held in a horizontal state when the stair portion is moved up and down by the angle difference between the first posture control roller and the second posture control roller. The cart part is combined. In the stair lifting device, when the lifting unit reaches the angle changing portion where the inclination angle changes such as a landing in the middle of the staircase, the second roller portion on the second posture control roller side is the first adjusting rail surface of the first adjusting rail member. Or it rides on the 2nd adjustment rail surface of a 2nd adjustment rail member, and rolls. Therefore, in the stair lifting device, the inclination of the carriage unit due to the difference in the inclination angle of the rail member installed at different inclination angles between the stair unit and the angle changing unit is corrected, and the riding unit becomes the angle changing unit. In this case, the horizontal posture is maintained and the robot moves up and down.

  Further, the stair lifting device according to the present invention that achieves the above-described object is a lifting device in which a motor, a driving gear that is driven to rotate by the motor, and a plurality of attitude control rollers or guide rollers are mounted on a carriage unit that supports the riding unit. The unit is a combination of a rail member in which the drive gear meshes with the rail member on which the attitude control roller rolls and is installed over the entire area on the stairs by adjusting the riding part to a horizontal attitude. The carriage unit is moved up and down by being combined in a straddling state according to the inclination angle of the stairs. The stair lift device includes a motor, a drive gear rotated by the motor, a first posture control roller and a second posture control roller that roll on the rail surface of the rail member, a rail, A plurality of guide rollers that roll while sandwiching the side surface of the member are mounted. The stair lift device is disposed on the carriage unit with the first posture control roller and the second posture control roller spaced apart in the lift direction and with an angle difference corresponding to the inclination angle of the staircase, and the second posture on the upper side. The control roller includes a first roller portion and a second roller portion that are provided adjacent to each other in the axial direction.

  The stair lift device is installed on the staircase so that the first rack and the first main rail surface are formed and adjusted to the inclination angle of the staircase, and the upper end portion is located above the step surface of the upper landing. A first main rail member and a second main rail member which is connected to the first rack and the second main rail surface is connected to the first main rail surface and is installed on the upper landing. 2 main rail members. The stair lifting device has a first adjustment rail surface having the same angle as the first main rail surface of the first main rail member, and a lower end portion is adjacent to the first main rail surface at a position corresponding to the upper landing. The first adjustment rail member that is positioned on the side surface of the second main rail member and the lower end portion is continuous with the first adjustment rail surface and is positioned above the second main rail surface of the second main rail member. And a second adjustment rail member which has a second adjustment rail surface extending in parallel and is combined with the side surface of the second main rail member corresponding to the upper landing.

  In the stair lifting device according to the present invention configured as described above, the lifting unit is configured so that the drive gear and the first rack or the second rack mesh with each other and the first posture control roller and the first roller of the second posture control roller. Part rolls on the first main rail member on the first main rail surface, and each guide roller rolls up and down on the side surface of the first main rail member. In the stair lifting device, when the lifting unit reaches the landing on the floor, the driving gear continuously rotates from the first rack of the first main rail member to the second rack of the second main rail member and rotates. The attitude control roller also rolls on the second main rail surface of the second main rail member continuously from the first main rail surface of the first main rail member.

  In the stair lift device, the inclination angle with respect to the rail member is set so that the riding portion is held in a horizontal state when the stair portion is moved up and down by the angle difference between the first posture control roller and the second posture control roller. The cart part is combined. In the stair lift device, the second main rail member that leads to the step with a different inclination angle from the first main rail member is provided at the upper landing, but when the lifting unit reaches the upper landing, the second posture On the control roller side, the second roller portion rides on the second adjustment rail surface of the second adjustment rail member from the first adjustment rail surface of the first adjustment rail member and rolls. Therefore, in the stair lift device, the tilt of the carriage part due to the difference in the inclination angle of the rail member between the stair part and the upper landing is corrected, and the lifting unit that rides up to the upper landing holds the riding part in a horizontal posture. .

  According to the stair lifting device according to the present invention configured as described above, the first main rail member and the second main rail member are respectively installed according to the inclination angle across the landing place provided in the middle of the staircase. For this reason, the amount of projecting forward of the second main rail member under the stairs is suppressed, and the installation space for the entrance is reduced. According to the stair lift device, the lift unit that moves along the third main rail member installed at a gentle inclination angle at the landing is adjusted by the second roller part on the second posture control roller side arranged on the upper floor. It gets up by riding on the rail surface and rolling, and moves up and down while maintaining a horizontal state.

  Therefore, according to the stair lifting device, it is not necessary to provide the posture changing mechanism for converting the riding portion to the horizontal state at the angle changing portion in the lifting unit, so that the structure can be simplified and the cost can be reduced. Thus, the passenger can be used with confidence without causing anxiety or discomfort to the user by holding the riding section in a horizontal state and moving up and down. In addition, according to the stair lift device, the first adjustment rail member and the second adjustment rail member are configured by appropriately separating and combining the basic shape rail members used for the main rail member. There is no need to manufacture rail members according to the stairs of the house, so that cost reduction and delivery time can be shortened.

  Moreover, according to the stair lifting device according to the present invention configured as described above, the first main rail member that is installed in accordance with the inclination angle of the staircase at the landing on the floor continuously has the first with a gentle inclination angle. The adjustment rail member and the second adjustment rail member are combined, and the elevator unit enters the upstairs landing while maintaining the horizontal posture of the riding section. According to the stair lifting device, the user can get on and off the boarding area at the landing on the floor, so that it can be used without causing anxiety. According to the stair lifting device, it is not necessary to provide a posture changing mechanism for changing the posture of the riding section at the landing on the floor, and simplification and cost reduction of the lifting unit are achieved. In addition, according to the stair lifting device, the first adjustment rail member and the second adjustment rail member are configured by appropriately separating and combining the basic shape rail members, so according to the stairs of individual houses as in the past. There is no need to manufacture rail members, so that cost reduction and delivery time can be shortened.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. A stair lifting device 1 shown as an embodiment is installed on a front staircase 2 of a high-floor type house as shown in FIG. When the number of steps of the entrance stairs 2 increases to some extent, an intermediate landing 2C having a predetermined depth is generally provided in the middle of the upper landing 2A and the lower landing 2B. The entrance staircase 2 is divided into an upper staircase portion 2D and a lower staircase portion 2E across the intermediate landing 2C, so that the gradient can be reduced and the elderly, children, or the disabled can safely move up and down. Is done.

  The stair lifting device 1 includes a lifting unit 3, a rail member 4 installed on the entrance staircase 2, an upper gate 5 installed on the upper landing 2A of the entrance stair 2, and a lower gate 6 installed on the lower landing 2B. Etc. In the stair lifting device 1, the mounting bracket member 7 is fixed on the steps of the intermediate landing 2C, the upper staircase portion 2D, or the lower staircase portion 2E of the entrance staircase 2 with an appropriate interval. A rail member 4 whose details will be described later is installed over the entire area of the stairs 2.

  As will be described in detail later, the stair lifting device 1 is configured such that a lifting unit 3 composed of an exterior frame 8, a carriage portion 9, and a riding portion 10 is combined in a straddled state with respect to a rail member 4. It moves up and down along 2. As will be described in detail later, the stair lifting device 1 is combined with the lifting unit 3 in a state in which the carriage portion 9 is tilted in accordance with the angle of the rail member 4 installed in accordance with the inclination angle of the entrance staircase 2. The riding part 10 is set and combined so that the horizontal state is maintained. Even when the elevating unit 3 passes through the intermediate landing 2C, the stair lifting device 1 is moved up and down while the horizontal state of the riding unit 10 is maintained by the configuration of the carriage unit 9 described later.

  The stair lift device 1 is suitably installed on the entrance staircase 2 of a high-floored house that is often built as a snow cover, especially in heavy snowfall areas, and is used exclusively for stair lifts for the elderly and the disabled for personal use. Of course, the invention is not limited to such application examples. As will be apparent from the configuration described later, the stair lift device 1 can be installed on, for example, an indoor staircase, and can also be used for transporting, for example, luggage that is not so heavy.

  Although not described in detail, the stair lifting device 1 is provided with a starting operation button on the lifting unit 3, the upper gate 5 or the lower gate 6, and the lifting unit 3 is moved up and down by operating this operation button. . The stair lifting device 1 performs the lifting operation of the lifting unit 3 while operating the operation buttons provided on the lifting unit 3. When the elevating unit 3 moves up and down to a predetermined position, the stair lifting device 1 is automatically stopped by the detection operation of the detection sensor. In the stair lifting device 1, the lifting unit 3 is stopped by operating a stop operation button provided on the upper gate 5 or the lower gate 6 or releasing the operation button of the lifting unit 3. The stair lifting device 1 is basically used in which the user gets on and off the lifting unit 3 at the upper landing 2A and the lower landing 2B, but the lifting unit 3 is operated by the stop operation button or detects an abnormal situation. Thus, it is possible to get on and off from an appropriate place stopped in the middle of the entrance stairs 2.

  As shown in FIGS. 2 and 3, the elevating unit 3 is configured by assembling a carriage unit 9 incorporating a drive mechanism and the like in an exterior frame 8, and combining the riding unit 10 with the exterior frame 8. As will be described in detail later, the lifting / lowering unit 3 is assembled in the exterior frame 8 with the carriage portion 9 adjusted with the mounting angle adjusted according to the inclination angle of the rail member 4, and the riding portion 10 held in a horizontal state with respect to the ground. The rail member 4 is assembled. The lifting unit 3 is basically used by a user sitting on the riding section 10, but can also be used in a standing state.

  The exterior frame 8 is formed in a substantially box shape having a bottom surface opened by using a metal plate such as a stainless steel material having sufficient mechanical strength and rust prevention characteristics. An opening for pulling out is formed. The exterior frame 8 may be formed by, for example, aluminum die casting. The exterior frame 8 is fixed by a number of screws after being assembled so as to cover the carriage 9 combined with the rail member 4 by adjusting the angle thereof from above.

  As shown in FIGS. 2 and 3, the carriage unit 9 has a metal frame body 11 having a substantially U-shaped cross-section and a drive motor 12 inside the frame body 11, and is rotated by the drive motor 12. A drive unit having a drive gear 13 to be driven and a first attitude control roller 14 and a second attitude control roller 15 that rolls on the rail surface of the rail member 4 or a plurality of guide rollers 16 is provided. As will be described in detail later, the carriage unit 9 has an angle of the frame body 11 so that it is parallel to the rail member 4 provided with a predetermined inclination angle according to the inclination of the entrance staircase 2. Adjusted and combined. The carriage unit 9 is entirely covered with the exterior frame 8 as described above.

  As the drive motor 12, a forward / reverse rotation type drive motor that is driven by being supplied with power converted through an inverter is used. The drive motor 12 is attached to the frame body 11 via a motor attachment bracket 12. Although not described in detail, the drive motor 12 is driven and controlled by the control unit so that the rotation of the drive motor 12 is slow when starting and stopping, and the rotation output is transmitted to the drive gear 13 via a gear train (not shown).

  The drive gear 13 is meshed with the feed dog 17a of the rack member 17 attached to the rail member 4 in a state where the carriage unit 9 is combined with the rail member 4 described later. When the drive motor 12 is activated, the carriage unit 9 is supported by the rail member 4 and moved up and down as the drive gear 13 moves while rotating along the rack member 17. The carriage unit 9 is moved up and down in a state where the load is distributed and there is no blurring as each guide roller 16 rotatably arranged on the frame body 11 along the raising / lowering direction sandwiches and rotates the side surface of the rail member 4. Operate.

  A first posture control roller 14 is disposed on the downstairs side and a second posture control roller 15 is disposed on the upper floor of the carriage unit 9 and is spaced apart in the ascending / descending direction. By attaching the first posture control roller 14 and the second posture control roller 15 to the frame body 11 with an angle difference that matches the inclination angle of the entrance staircase 2, As shown, the entrance stairs 2 are combined in an inclined state according to the inclination angle. The first posture control roller 14 and the second posture control roller 15 are rail surfaces of the rail member 4 that are installed in accordance with the inclination angle of the entrance stairs 2 when the lifting unit 3 moves up and down along the rail member 4. Roll on 4a.

  The fixed position of the first posture control roller 14 and the second posture control roller 15 is appropriately set in the carriage unit 9 according to the mounting posture of the frame 11 with respect to the rail member 4. For example, the carriage unit 9 may be configured to give a predetermined angle difference so that the second posture control roller 15 is adjusted and moved along the arc-shaped groove with reference to the first posture control roller 14.

  The first attitude control roller 14, the second attitude control roller 15, and the guide roller 16 have high wear resistance and mechanical rigidity, and are lightweight, for example, urethane resin, polyoxymethylene (POM) resin material, or polyamide resin material. Each of them is formed of a synthetic resin material. Of course, these members are not limited to those made of synthetic resin, but it is preferable to use those formed of such materials in view of weight reduction, durability, rust prevention, cost, and the like.

  As shown in FIGS. 2 and 3, the carriage unit 9 is first positioned so as to straddle the rail member 4 between the front surface part 11 a and the back surface part 11 b located at the upper part on the downstairs side of the frame body 11. A support shaft 18 is supported, and a first attitude control roller 14 is rotatably mounted on the first support shaft 18. The first posture control roller 14 is formed with a guide recess 20 on the outer peripheral surface thereof that engages with a detent guide rib 19 that is formed to protrude over the entire length of the rail surface 4a of the rail member 4 over the entire periphery. Has been. The first posture control roller 14 moves the carriage unit 9 up and down in a stable state by rolling the guide recess 20 relative to the slip-off prevention guide rib 19 and rolling.

  As shown in FIG. 6 and FIG. 7, the carriage unit 9 is located at the upper part on the upper floor of the frame body 11 so as to straddle the rail member 4 between the front part 11 a and the rear part 11 b. A support shaft 21 is supported, and a second attitude control roller 15 is rotatably mounted on the second support shaft 21. The second support shaft 21 is supported by the frame body 11 with an angle difference with respect to the first support shaft 18 on the first attitude control roller 14 side.

  As shown in FIGS. 6 and 7, the second posture control roller 15 has a thickness substantially equal to the width of the rail surface 4 a of the rail member 4. A guide recess 23 is formed over the entire circumference adjacent to each other in the axial direction. The first guide recess 22 and the second guide recess 23 also have the same groove width and depth as the guide recess 20 on the first attitude control roller 14 side, and are relatively engaged with the slip-off prevention guide rib 19 of the rail member 4. To do.

  The second posture control roller 15 is formed such that the first guide recess 22 on the outer side (right side in FIG. 6) is located on the same axis as the guide recess 20 of the first posture control roller 14. The second posture control roller 15 is configured such that the first guide recess 22 prevents the rail member 4 from coming off above the guide recess 20 when the carriage unit 9 moves up and down the upper step 2D and the lower step 2E of the entrance staircase 2. The rail surface 4a rolls in a stable state with relative engagement with the guide rib 19. The second posture control roller 15 is configured such that when the carriage unit 9, which will be described in detail later, travels on the intermediate landing 2 </ b> C of the entrance stairs 2, the inner second guide recess 23 is relatively engaged with the slip-off preventing guide rib 19. Roll on surface 4a.

  In addition, although the 2nd attitude | position control roller 15 had the somewhat large thickness and formed the 1st guide recessed part 22 and the 2nd guide recessed part 23 in the outer peripheral part, it is not limited to this structure. The second attitude control roller 15 uses, for example, two rollers formed in the same manner as the first attitude control roller 14 described above, and these rollers are integrated next to each other so as to be rotatably mounted on the second support shaft 21. You may comprise.

  As shown in FIG. 2, each guide roller 16 is rotatably supported by attachment portions 16 a formed on the frame body 11 in parallel with the rail member 4. Each guide roller 16 is provided so as to be appropriately arranged in the ascending / descending direction on the back side of the rail member 4 in a state where the carriage unit 9 is combined with the rail member 4. As shown in the figure, each guide roller 16 is arranged to be pressed against the side surface of the rail member 4 or engaged with the side edge of the rail surface 4 a of the rail member 4. Each guide roller 16 rotates the side surface of the rail member 4 when the cart unit 9 moves up and down, and supports the cart unit 9 so that the cart unit 9 can move in a stable state while suppressing the shake of the cart unit 9.

  The riding section 10 includes a seat 24 installed on the exterior frame 8, a step body 25 supported by the exterior frame 8, a handle member 26, handle members 27A and 27B, and the like. As shown in FIGS. 1 and 2, the step body 25 is positioned below the front surface of the exterior frame 8 and is rotatably supported by the hinge mechanism 28 in a cantilever state. The step body 25 is biased in a direction to be folded toward the exterior frame 8 by a torsion spring incorporated in the hinge mechanism 28, and is in a state indicated by a chain line in FIG.

  The riding part 10 unfolds the step body 25 as described above, and the user rides on the step body 25 in this state. The riding section 10 basically moves the elevating unit 3 up and down while the user is seated on the seat chair 24, but holds the handle member 26 or the handle members 27A and 27B while standing on the step body 25. It can also be used. In the riding section 10, a seat belt 24a is provided on a seat chair 24 as shown in FIG.

  The step body 25 is developed in a state orthogonal to the exterior frame 8 as shown by a solid line in FIG. 2 through a link mechanism 29 that omits details by tilting the handle member 26 toward the front side. When the step body 25 is unfolded from the folded state, the elastic force of the torsion spring is switched to a direction to maintain the unfolded state when the intermediate point is exceeded, and the unfolded state is maintained by a stopper (not shown) provided on the hinge mechanism. Is done.

  The handle members 27A and 27B are supported on the support shaft provided on the exterior frame 8 so as to be separated from each other left and right. The handle members 27A and 27B are positioned on the back side of the seat chair 24 so as not to disturb when not in use. It is rotated to the near side. Although not described in detail, the handle members 27A and 27B are provided with an operation portion in which a hand switch for raising and lowering and an alarm lamp for an abnormal situation are arranged at the distal end portion. The handle members 27A and 27B are held by the user when getting on and off the elevator unit 3 or during boarding to perform a support function and constitute an operation unit for moving the elevator unit 3 up and down or stopping during boarding.

  The elevating unit 3 includes the above-described handle members 27A and 27B, so that necessary switch operations can be performed regardless of the forward / backward riding posture, right-handed / left-handed, presence / absence of luggage, etc. Improvements are being made. The elevating unit 3 moves to the upper landing 2A or the lower landing 2B when a call switch provided on the upper gate 5 or the lower gate 6 is operated by the user. The elevating unit 3 is moved up and down by the power being supplied to the drive motor 12 while a user gets on and operates a hand switch provided on the handle members 27A and 27B, for example, while pressing an up or down operation switch. Is done. The lifting / lowering unit 3 is stopped by releasing the hand switch, thereby improving safety and convenience. The elevating unit 3 is also moved up and down by operating an ascending or descending operation switch provided on the upper gate 5 or the lower gate 6.

  As shown in FIG. 1, the elevating unit 3 is provided with a display unit 30 in which a plurality of LEDs are built in the front surface of the exterior frame 8. The display unit 30 is used safely even at night or the like by illuminating the foot part by lighting the LED when the step body 25 is expanded. For example, when the abnormal state occurs, the display unit 30 displays the occurrence of the situation by blinking the LED, for example.

  The lifting / lowering unit 3 is combined with the rail member 4 installed on the entrance staircase 2 in a straddled state with a carriage 9 dropped from above as shown in FIGS. 3 to 5. In the lifting unit 3, the first posture control roller 14 provided on the carriage unit 9 is positioned on the lower side and the second posture control roller 15 is positioned on the upper side with respect to the rail surface 4 a of the rail member 4. As described above, the lifting / lowering unit 3 has the first posture control roller 14 and the second posture control roller 15 attached to the frame body 11 with an angle difference matched to the inclination angle of the entrance staircase 2. Thus, the carriage unit 9 is inclined according to the inclination angle of the entrance stairs 2.

  In the lifting / lowering unit 3, the drive gear 13 is meshed with the feed dog 17 a of the rack member 17 assembled to the rail member 4. The elevating unit 3 is combined with the rail member 4 in a stable state by causing each guide roller 16 to abut against the side surface at an appropriate position with respect to the rail member 4.

  The rail member 4 is made of a lightweight metal material having a relatively light weight, good workability, and sufficient mechanical strength, such as an aluminum material or an aluminum alloy material, and is integrally formed by, for example, drawing or extruding. . The rail member 4 is formed of, for example, a stainless steel material when the stair lifting device 1 is installed in a public facility or the like and is frequently used and requires a higher mechanical strength. For example, the rail member 4 is exclusively used indoors. Therefore, when a special rust prevention measure is not required, a steel material may be used.

  The rail member 4 is provided as a standard member having a predetermined length, and is cut into an appropriate length and installed according to the site response. When the installation distance of the rail member 4 is longer than the reference length, a plurality of rail members 4 having an appropriate length are connected by the joint member 31 in the length direction. The joint member 31 is assembled to, for example, both upper and lower side surfaces in a state where the two rail members 4 to be coupled are abutted with each other, and are screwed together.

  As shown in FIG. 4, the rail member 4 has a base portion 32 that is slightly widened, and a rail surface 4 a that is erected vertically integrally with the base portion 32 and has an upper end portion that is prevented from coming off and formed with a guide rib 19. The rail part 33 is comprised. The rail member 4 has a large number of space portions 34a to 34d that appropriately divide the inside of the base portion 32 and the rail portion 33 in order to reduce the weight and reduce the cost as long as sufficient mechanical strength is maintained. Is formed over the entire region in the length direction. The rail member 4 is formed with mounting recesses 35 accommodated in a state where the nuts 35a are prevented from rotating at appropriate positions in the length direction on both side surfaces of the base portion 32. The rail member 4 is fixed by screwing a set screw 36 into the nut 35a in the mounting recess 35 with respect to the mounting bracket member 7 fixed to the entrance staircase 2.

  The mounting bracket member 7 is made of steel or stainless steel, and is fixed on the steps of the entrance stairs 2 by anchor bolts 7a. A pair of mounting members 37 </ b> A and 37 </ b> B are erected on the mounting bracket member 7 with a facing interval substantially equal to the width of the base portion 32 of the rail member 4. The mounting members 37A and 37B are formed with mounting holes having the same axis, and the base portion 32 of the rail member 4 is fitted into the mounting space with the mounting recess 35 facing the mounting hole. The mounting bracket member 7 is stopped through the mounting holes of the mounting members 37A and 37B in a state in which the rail member 4 fitted between the mounting members 37A and 37B is adjusted in inclination angle according to the inclination of the entrance staircase 2. When the screw 36 is screwed into the nut 35 a in the mounting recess 35, the rail member 4 is fixed according to the inclination of the entrance staircase 2.

  The rail member 4 is configured as a guide space portion in which the second space portion 34b in the rail portion 33 is inserted through the power cable 38 over the entire length. In the rail member 4, a guide space portion 34 e is formed on the upper side surface of the rail portion 33. The guide space portion 34 e is connected to the connection end portion 38 a of the power cable 38 that is folded back by the upper gate 5 and connected to the lifting unit 3. . As a cold district specification, the rail member 4 may be configured as a heating space portion for preventing freezing by, for example, detachably incorporating a belt-like heating element 39 in the other space portions 34c and 34d.

  The power cable 38 is prevented from being slackened by performing a length adjusting operation associated with the lifting / lowering operation of the lifting / lowering unit 3 by the cable guide mechanism 40 provided inside the rail member 4. Although not described in detail, the cable guide mechanism 40 includes a pulley 41 that folds the power cable 38 having the connection end 38a connected to the lift unit 3 in the upper gate 5 and a folded power cable 38 as shown in FIG. It is constituted by a cable guide member 42 or the like on which a pulley 42a to be hooked is mounted. The power cable 38 is folded back by the pulley 42a of the cable guide member 42 and fixed to the upper gate 5, and is connected to a household power source.

  The cable guide mechanism 40 adjusts the length of the power cable 38 having a certain length by moving the cable guide member 42 up and down in the direction opposite to the lifting unit 3 in the second space 34b. Although not described in detail, the cable guide member 42 is assembled so as to smoothly slide in the second space 34b of the rail member 4. When the lifting / lowering unit 3 moves upward, the cable guide member 42 slides downward due to its own weight, and pulls the power cable 38 between the lifting / lowering unit 3 and the upper gate 5 to eliminate slack. When the elevating unit 3 moves downward, the cable guide member 42 is pulled by the power cable 38 and slides upward so as to eliminate the slack of the power cable 38 between the cable guide member 42 and the upper gate 5. The cable guide member 42 adjusts the length of the power cable 38 associated with the lifting / lowering operation of the lifting / lowering unit 3 by performing a moving pulley operation inside the rail member 4 as described above. The power cable 38 supplies power to the lifting unit 3 and also constitutes a signal line such as an appropriate safety switch (not shown) mounted on the lifting unit 3.

  As described above, the rail member 4 is configured such that the upper end surface of the rail portion 33 is the rail surface 4a, is formed in a flat and smooth surface, and is positioned at a substantially central portion in the width direction so that the slip prevention guide rib 19 is extended over the entire length. It is formed as a single protrusion. As shown in FIG. 4, the rail member 4 is integrally formed with an upper end portion of the rail portion 33, and a receiving plate portion 43 that protrudes in the horizontal direction from the rail surface 4 a to the back side over the entire length. The receiving plate portion 43 has substantially the same width as that of the rail surface 4a, and protrudes like a bowl from the rail portion 33, thereby constituting the above-described guide space portion 34e.

  In the rail member 4, a large number of rack mounting portions 44 are integrally formed on the side surface of the rail portion 33 positioned below the receiving plate portion 43 with an appropriate interval in the length direction. Each rack mounting portion 44 is formed of a cylindrical convex portion provided with a nut housing hole 44a that opens to the rear side, and the nut 44b is housed in a state of being prevented from rotating in the nut housing hole 44a.

  The rack member 17 is attached to the rail member 4 on the side surface of the rail portion 33 via the rack attachment portions 44 described above. The rack member 17 is also composed of an overall long plate-like member formed of a lightweight metal material having a relatively light weight, good workability, and sufficient mechanical strength, such as an aluminum material or an aluminum alloy material. The rack member 17 is formed with a feed dog 17a over the entire length at one side edge in the width direction. The rack member 17 is combined with the side surface of the rail portion 33 so that the side surface is placed on each rack mounting portion 44, and a mounting hole is appropriately formed corresponding to the nut housing hole 44a. The rack member 17 is fixed to the rail member 4 by screwing a set screw 45 inserted into each mounting hole into the nut 35a in the nut housing hole 44a.

  Although the details are omitted, the upper gate 5 is installed in the upper landing 2A. The upper gate 5 is provided with the pulley 41 for turning back the power cable 38 as described above, and constitutes a power control unit to convert the outlet, breaker or household power source connected to the household power source into a predetermined power source. A power supply unit and the like are provided. The upper gate 5 is provided with an operation switch for driving or stopping the elevating unit 3, a display unit for displaying the occurrence of an abnormal situation, and the like. Although not described in detail, the upper gate 5 is also provided with a fixing member that fixes the upper end portion of the rail member 4 at a predetermined inclination angle. The lower gate 6 is installed, for example, in the lower landing 2B of the entrance staircase 2, and is provided with an operation switch for driving or stopping the lifting unit 3, a display unit for displaying the occurrence of an abnormal situation, and the like.

  By the way, the entrance staircase 2 has a portion where the inclination angle changes in the intermediate landing 2C by providing the intermediate landing 2C in the middle as described above. In the stair lifting device 1, the lifting unit 3 has the second posture control roller 15 in which the first guide recess 22 and the second guide recess 23 are formed as described above. In the stair lifting device 1, the rail member 4 is positioned on the first main rail member 46 installed on the lower staircase 2E across the intermediate landing 2C and the upper staircase 2D, as shown in FIG. The second main rail member 47 installed, the third main rail member 48 installed corresponding to the intermediate landing 2C, the first adjustment rail member 49 and the second adjustment combined with the third main rail member 48 The rail member 50 is comprised. In the stair lifting device 1, with this configuration, the lifting unit 3 is supported by the rail member 4 while being moved up and down at the intermediate landing 2 </ b> C where the inclination angle changes, while being supported by the rail member 4. .

  As the first main rail member 46 to the third main rail member 48, the rail member 4 having the above-described structure is used as it is, and is cut to an appropriate length depending on the site. As shown in FIG. 1, the first main rail member 46 cuts the rail member 4 to a length slightly shorter than the distance between the downstairs landing 2B and the intermediate landing 2C, and inclines the lower staircase 2E via the mounting bracket member 7. Install with an inclination angle according to the angle. The second main rail member 47 also cuts the rail member 4 to a length slightly longer than the interval between the upper landing 2A and the intermediate landing 2C, fixes the upper end to the upper gate 5 and attaches the middle portion to the mounting bracket member. 7 is fixed to the upper staircase 2D with an inclination angle corresponding to the inclination angle.

  The third main rail member 48 has a length equal to the distance between the upper end of the first main rail member 46 and the lower end portion of the second main rail member 47, and the lower end edge is abutted with the upper end edge of the first main rail member 46. The reference rail member 4 is cut and formed so as to have a shape and a shape in which the upper end edge is abutted with the lower end edge of the second main rail member 47. The third main rail member 48 abuts the lower end edge with the upper end edge of the first main rail member 46 and the upper end edge abuts with the lower end edge of the second main rail member 47 to be fixed to the mounting bracket member 7. Therefore, the third main rail member 48 is installed facing the intermediate landing 2C, so that a gentle inclination angle is given to the first main rail member 46 and the second main rail member 47.

  The first main rail member 46 to the third main rail member 48 are configured such that the first rail surface 46a to the third rail surface 48a each having the retaining guide rib 19 and the rack member 17 attached to each of the first rail surface 46a to the third rail surface 48a are connected to each other. An integral rail member is configured and installed on the entrance stairs 2. The first main rail member 46 to the third main rail member 48 support the elevating unit 3 and move up and down. At this time, the first attitude control roller 14 provided in the elevating unit 3 moves to the first rail surface 46a to the first rail surface 46a. While continuously rolling on the three-rail surface 48a, the drive gear 13 is continuously meshed with the feed teeth 17a of the rack members 17 and is rotated while rotating. The first main rail member 46 to the third main rail member 48 are configured such that the second space 34b in which the cable guide mechanism 40 is accommodated is continuously provided over the entire length.

  The second adjustment rail member 50 is also cut to a length substantially equal to that of the third main rail member 48 by using the rail member 4 described above. Further, as shown in FIG. 5, the third space portion 34c of the rail portion 33 is used. The upper part cut | disconnected in the height direction at the position of and formed the rail surface 4a is used. The second adjustment rail member 50 is formed such that the upper portion side is cut obliquely in accordance with the inclination angle of the second main rail member 4B and the lower end edge is cut vertically. Since the second adjustment rail member 50 is formed by cutting the rail member 4, a second adjustment rail surface 50 a is formed by the rail surface 4 a at the upper end portion, and the second adjustment rail member 50 protrudes from the second adjustment rail surface 50 a. The second detachment prevention guide rib 50b is formed.

  As shown in FIG. 5, the second adjustment rail member 50 has one or a plurality of mounting members 51 combined with an open bottom surface portion, and is fixed on the third main rail member 48 via the mounting members 51. The The attachment member 51 is a channel-shaped member made of the same metal material as that of the rail member 4, and includes a bottom surface portion 51 a and standing wall portions 51 b and 51 c that are substantially equally spaced from the width of the third space portion 34 c. . The attachment member 51 is provided with attachment holes at appropriate positions, and the nuts 52 are respectively assembled to the attachment members 51 so as to face the attachment holes. The attachment member 51 is combined so as to close the bottom surface of the second adjustment rail member 50, and is integrated with the second adjustment rail member 50 by an attachment screw 52a and a nut 52b.

  The second adjustment rail member 50 is fitted from the mounting hole formed in the receiving plate portion 43 corresponding to the mounting hole in a state where the mounting member 51 is placed on the receiving plate portion 43 of the third main rail member 48. The inserted mounting screw 54 is fixed onto the third main rail member 48 by screwing it into the nut 52. The second adjustment rail member 50 is fixed to the third main rail member 48 in the corresponding region of the intermediate landing 2C, so that the second adjustment rail member 50 is upward and lateral to the third rail surface 48a of the third main rail member 48. A second adjustment rail surface 50a is positioned and extends in parallel. The second adjustment rail member 50 extends to the side of the second main rail member 47 at a position where the upper end portion exceeds the intermediate landing 2C, and is adjacent to the second rail surface 47a. Configure.

  The rail member 4 described above is also used for the first adjustment rail member 49, and the upper portion where the rail surface 4a is formed is arranged at the upper end portion of the first main rail member 46, the lower end portion of the third main rail member 48, and the second portion. It is formed by cutting in accordance with a shape substantially equal to the space portion of an isosceles triangle surrounded by the lower end portion of the adjustment rail member 50. That is, the first adjustment rail member 49 has one side substantially equal to the interval between the upper end portion of the first main rail member 46 and the lower end portion of the second adjustment rail member 50 and substantially equal to the inclination angle of the first main rail member 46. From the rail member 4, the first adjustment rail surface 49 a having an inclination angle is provided and the bottom surface portion facing the first adjustment rail surface 49 a is inclined substantially equal to the rail surface 48 a of the third main rail member 48. It is cut and formed. The first adjustment rail member 49 has the above-mentioned isosceles triangle by making the upper end faced with the second adjustment rail member 50 vertical.

  Similarly to the second adjustment rail member 50, the first adjustment rail member 49 is also combined with a mounting member 51 on the bottom surface portion, and the second adjustment rail member 49 is provided on the receiving plate portion 43 of the third main rail member 48 via the attachment member 51. The adjustment rail member 50 is abutted and fixed. Since the first adjustment rail member 49 has the same fixing structure as that of the second adjustment rail member 50 described above, detailed description thereof is omitted.

  The first adjustment rail member 49 is positioned above and to the side of the third main rail member 48 in a state of being fixed on the third main rail member 48, and the first rail surface 46 a of the first main rail member 46 A first adjustment rail surface 49a having the same angle and a larger inclination angle than the third rail surface 48a is formed. Further, the first adjustment rail member 49 has a lower end portion extending to the side of the first main rail member 46, and constitutes a first adjustment rail surface 49a adjacent to the first rail surface 46a.

  The stair lifting device 1 includes the first main rail member 46 to the third main rail member 48, the first adjustment rail member 49, and the second adjustment rail member 50 that are installed on the entrance staircase 2 as described above. The above-described lifting unit 3 is combined with the rail member 4. In the stair lifting device 1, the lifting unit 3 is moved up and down by pressing each hand button provided on the lifting unit 3, the upper gate 5, or the lower gate 6, respectively.

  For example, when the elevator unit 3 is stopped on the upper landing 2A of the entrance staircase 2 or on the way and the user uses it from the lower landing 2B, the operation button provided on the lower gate 6 is pressed. Is done. In the stair lift device 1, the operation button is continuously pressed until the lift unit 3 reaches the lower limit position, and the operation state is displayed by the display of the lift unit 3, the upper gate 5 or the lower gate 6 during this time. In the stair lifting device 1, after the lifting unit 3 is moved to a predetermined position, the step members 25 folded from the exterior frame 8 are unfolded by rotating the handle members 27A and 27B to the near side. To do.

  In the stair lifting device 1, a user gets on the step body 25 and gets on the lifting unit 3. In the stair lifting device 1, the lifting operation of the lifting unit 3 is started when the user continues to push the hand switch provided on the handle members 27A and 27B. For example, when it is difficult for a user to operate alone, the stair lift device 1 is fixed to the seat chair 24 by the seat belt 24a, and then the attendant operates the upper gate 5 and the lower gate 6. It is also possible to move the elevating unit 3 up and down by continuously pressing the switch.

  In the stair lift device 1, the power is supplied to the drive motor 12 of the lift unit 3, the drive gear 13 is rotationally driven, and moves while meshing with the feed dog 17 a of the rack member 17, whereby the lift unit 3 is moved to the rail member 4. Is moved up and down the lower staircase 2E. In the stair lifting device 1, when the lifting unit 3 moves up the lower staircase 2E from the lower landing 2B toward the upper landing 2A, for example, a rack attached to the first main rail member 46 as shown in FIG. The drive gear 13 meshes with the feed dog 17a of the member 17 and rotates, and the first attitude control roller 14 and the second attitude control roller 15 provided on the first main rail surface 46a so as to be spaced apart in the ascending / descending direction roll. . In the figure, the first attitude control roller 14 is indicated by a dotted line.

  In the stair lifting device 1, the first posture control roller 14 and the second posture control roller 15 form the guide recess 20 and the first guide recess 22 on the first main rail surface 46 a of the first main rail member 46. The detachment prevention guide ribs 19 are caused to roll relative to each other. In the stair lifting device 1, each guide roller 16 (not shown in the figure) also rolls on the side surface portion of the first main rail member 46, so that the lifting unit 3 is moved up while maintaining a stable state. In the stair lifting device 1, the cart unit 9 is the first by providing the first attitude control roller 14 and the second attitude control roller 15 with an angle difference according to the inclination angle of the first main rail member 46. The riding section 10 is held in a horizontal state while being tilted and combined with the main rail member 46. Therefore, in the stair lifting device 1, the lifting unit 3 continues to move up along the first main rail member 46 with a sense of security for the user.

  In the stair lifting device 1, the horizontal state of the riding section 10 is also maintained when the upper part of the lifting unit 3 reaches the intermediate landing 2C and passes through the third main rail member 48. In the stair lifting device 1, a structure in which the second posture control roller 15 provided in the lifting unit 3 and preceding the rail member 4 is adjacent to the first guide recess 22 and integrally formed with the second guide recess 23. It has become. In the stair lift device 1, the first adjustment rail member 49 attached to the third main rail member 48 at the side position of the first main rail surface 46 a of the first main rail member 46 at the corresponding position of the intermediate landing 2 </ b> C. One adjustment rail surface 49a extends.

  Therefore, in the stair lifting device 1, when the upper portion of the lifting unit 3 reaches the intermediate landing 2C, the second posture control roller 15 causes the first guide concave portion 22 and the first main rail member 46 to come out of the guide rib 19 relative to each other. From the engaged state, the second guide recess 23 and the first adjustment rail member 49 side come-off prevention guide rib 19 without being engaged with the third main rail member 48 side come-off prevention guide rib 19 that is continuous with the first main rail member 46. Switching to the engaged state with 49b is performed, and the first adjustment rail surface 49a of the first adjustment rail member 49 rolls as shown in FIG. In the stair lifting device 1, the second posture control roller 15 moves up and down on the first adjustment rail surface 49 a of the first adjustment rail member 49 to roll up and down regardless of the inclination angle of the third main rail member 48. The unit 3 gradually rises up from the upper part.

  In the stair lifting device 1, as shown in FIG. 1, the first posture control roller 14 maintains the state in which the guide recess 20 and the disengagement guide rib 19 of the first main rail member 46 are relatively engaged with each other. Roll on the main rail member 46. In the stair lifting device 1, when the first posture control roller 14 changes from the first main rail surface 46 a of the first main rail member 46 to the third main rail surface 46 a of the third main rail member 48, the second posture. The control roller 15 also changes from the first adjustment rail surface 49 a of the first adjustment rail member 49 to the second adjustment rail surface 50 a of the second adjustment rail member 50. In the stair lifting device 1, the lifting unit 3 determines the angular difference between the first main rail member 46 and the third main rail member 48, and the second attitude control roller 15 uses the second adjustment rail surface 50 a of the second adjustment rail member 50. , And the horizontal state of the riding part 9 is maintained, so that the intermediate landing 2C is moved.

  In the stair lifting device 1, when the upper part of the lifting unit 3 passes through the intermediate landing 2 </ b> C and reaches the upper stair 2 </ b> D, the second posture control roller 15 moves the first guide recess 22 into the second main rail member 47. It rolls by engaging with the release prevention guide rib 19 formed on the main rail surface 47a. In the stair lifting device 1, the lifting unit 3 gradually cancels the rising state of the upper part. In the stair lifting device 1, when the lifting unit 3 finishes passing through the intermediate landing 2 </ b> C, the first attitude control roller 14 also moves from the third main rail surface 48 a of the third main rail member 48 to the second of the second main rail member 47. Change to main rail surface 47a. In the stair lifting device 1, the lifting unit 3 returns to the initial state and is supported by the third main rail member 48 to move the upper staircase 2D toward the upper landing 2A.

  On the other hand, in the stair lifting device 1, when the lifting unit 3 runs on the intermediate landing 2C, the first posture control roller 14 on the lower side is held in the state shown in FIG. It moves on the rail surface 4a. That is, in the stair lifting device 1, the first posture control roller 14 is continuously connected to the first main rail member 46 by the first guide recess 22 that has been engaged with the guide ribs 19 of the first main rail member 46. The third main rail member 48 rolls on the third main rail surface 48a of the third main rail member 48 by engaging with the release guide rib 19 on the third main rail member 48 side. In the stair lifting device 1, the drive gear 13 is engaged with the feed dog 17 a of the rack member 17 attached to the third main rail member 48 from the rack of the rack member 17 attached to the first main rail member 46 and rotates. In the stair lifting device 1, even when traveling on the third main rail member 48 having a gentle slope, the state in which the first main rail member 46 is moved is maintained by the lifting unit 3 gradually rising up. Is done.

  In the stair lift device 1, when the lift unit 3 reaches the upper staircase 2 </ b> D in the same manner, the first guide recess 14 in which the first posture control roller 14 is engaged with the release guide rib 19 of the third main rail member 48. 22 continuously engages with the disengagement guide rib 19 on the second main rail member 47 side that is continuous with the third main rail member 48, thereby rolling the second main rail surface 47 a of the second main rail member 47. In the stair lifting device 1, the drive gear 13 is engaged with the feed dog 17 a of the rack member 17 attached to the third main rail member 48 from the rack of the rack member 17 attached to the third main rail member 48 and rotates.

  In the stair lift device 1, when the lift unit 3 reaches the upper landing 2 </ b> A, a sensor (not shown) operates to open the power circuit and cut off the power supply to the drive motor 12. In the stair lifting device 1, when the sensor detects that the user has exited from the riding section, the reset operation of each section is performed after a predetermined time has elapsed, and the standby state is set. In the stair lifting device 1, the unfolded step body 25 is returned to the original so as not to obstruct the user who lifts the entrance staircase 2 by walking. In the stair lifting device 1, the downward movement from the upper landing 2A to the lower landing 2B is performed by the reverse operation of the above-described upward movement.

  In the stair lift device 1, as shown in FIG. 1, the second main rail member 47 is installed so as to protrude to the upper landing 2A. Therefore, in the stair lifting device 1, the lifting unit 3 stops at a slightly higher position from the step surface 2a in the upstairs landing 2A, and when the user gets on and off, anxiety is felt or assistance is required. .

  In the stair lift device 60 shown as the second embodiment in FIG. 8, as in the first main rail member 46 to the third main rail member 48 described above, also in the upper landing 2 </ b> A as shown in FIG. 8. By installing the configured fourth main rail member 61, the third adjusting rail member 62 and the fourth adjusting rail member 63 configured in the same manner as the first adjusting rail member 49 and the second adjusting rail member 50, the riding section It is also possible to lower the height of 10 and the step surface 2a so that the elevating unit 3 can be climbed up to the upper landing 2A. In addition, since the stair lift device 60 has the same basic configuration as that of the stair lift device 1 described above, the corresponding members and parts are denoted by the same reference numerals, and the description thereof is omitted.

  In the stair lift device 60, as shown in FIG. 8, the second main rail member 47 is formed by cutting the rail member 4 so that the upper end of the second main rail member 47 is slightly lower than the step surface 2a of the upper landing 2A. The In the stair lifting device 60, the fourth main rail member 61 is connected to the second main rail member 47, and the third adjustment rail member 62 and the fourth adjustment rail member 63 are further connected to the fourth main rail member 61. Are combined. In the stair lifting device 60, the fourth main rail member 61 is formed by cutting the rail member 4 with a length located to the back of the upper landing 2A, and the rack member 17 is attached to the side surface thereof.

  In the stair lifting device 60, the fourth main rail member 61 is connected at the lower end to the upper end of the second main rail member 47, and has a gentler inclination angle than the inclination angle of the second main rail member 47. It is attached and installed. In the stair lifting device 60, the rail member 4 that goes over the upper landing 2 </ b> A and reaches the back is installed on the entrance staircase 2 by providing the fourth main rail member 61 in this way.

  The fourth main rail member 61 has a gentle inclination angle, but the second main rail member 47 is continuously provided with the rail surface and the slip-off preventing guide ribs and the feed teeth of the rack member 17 are also continuously provided. . Although not shown, the upper end of the fourth main rail member 61 is fixed to the upper gate 5, and the power cable 38 is inserted into the internal space.

  In the stair lift device 60, the third adjustment rail member 62 formed by cutting the rail member 4 into an isosceles triangle like the first adjustment rail member 49 described above is provided with respect to the fourth main rail member 61. By being fixed on the receiving plate part, it is combined with the side part. In the combined state, the third adjustment rail member 62 has a lower end portion of the rail surface extending to the side of the upper end portion of the second main rail member 47 so as to be parallel to the rail surface 47a, and an upper end portion of the upper side of the floor. It is located on the side of the rail surface of the fourth main rail member 61 and above the landing 2A.

  In the stair lifting device 60, the fourth adjustment rail member 63 formed by cutting the rail member 4 in the same manner as the second adjustment rail member 50 described above is on the receiving plate portion with respect to the fourth main rail member 61. It is combined with the side part by being fixed. The fourth adjustment rail member 63 constitutes a parallel rail surface located on the side and above the rail surface of the fourth main rail member 61 in the combined state. The fourth adjustment rail member 63 is configured such that a lower end portion thereof is abutted with the third adjustment rail member 62 to form a continuous rail surface with a gentle inclination angle with respect to the rail surface of the third adjustment rail member 62. To do. The upper end of the fourth adjustment rail member 63 is also fixed to the upper gate 5.

  In the stair lift device 60, the rail unit 4 including the fourth main rail member 61, the third adjustment rail member 62, and the fourth adjustment rail member 63 described above is installed in the upper landing 2A. Is moved up to the step surface 2a of the upper landing 2A, and the riding unit 10 is also kept horizontal with respect to the step surface 2a. That is, in the stair lift device 60, the second posture control roller 15 is placed on the rail surfaces of the third adjustment rail member 62 and the fourth adjustment rail member 63 in the same manner as when the lifting unit 3 travels the intermediate landing 2C described above. By changing and rolling, the upper part is raised. In the stair lift device 60, the user can get on and off the lift unit 3 whose height position with respect to the step surface 2a is reduced in the upper landing 2A.

It is a principal part front view which shows the installation state of the stair lifting apparatus shown as embodiment of this invention. It is a partially cutaway principal part side view of the raising / lowering unit of the stair raising / lowering apparatus. It is a partially cutaway principal part side view of the trolley | bogie part of a raising / lowering unit. It is a longitudinal cross-sectional view of a rail member. It is a principal part longitudinal cross-sectional view of the rail member installed in an intermediate landing. It is a principal part longitudinal cross-sectional view which shows the state to which an raising / lowering unit moves a staircase part. It is a principal part longitudinal cross-sectional view which shows the state which a raising / lowering unit moves to an intermediate landing. It is a principal part front view which shows the installation state of the stair-lifting apparatus shown as other embodiment. It is explanatory drawing which installs a rail member in the entrance stairs provided with the intermediate landing. It is explanatory drawing which installs a rail member in an intermediate landing.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Stair lift device, 2 entrance staircases, 2A upper landing, 2B lower landing, 2C intermediate landing, 3 lift unit, 4 rail member, 4a rail surface, 5 upper gate, 6 lower gate, 7 mounting bracket member, 8 exterior frame , 9 bogie part, 10 riding part, 11 frame body, 12 drive motor, 13 drive gear, 14 first attitude control roller, 15 second attitude control roller, 16 guide roller, 17 rack member, 19 slip-off prevention guide rib, 20 guide Recess, 22 First guide recess, 23 Second first guide recess, 25 Step body, 27 Hinge mechanism, 31 Joint member, 32 Base part, 33 Rail part, 38 Power cable, 43 Base plate part, 46 First main Rail member, 46a First main rail surface, 47 Second main rail member, 47a Second main rail surface, 48 3 main rail members, 48a 3rd main rail surface, 49 1st adjustment rail member, 49a 1st adjustment rail surface, 50 2nd adjustment rail member, 50a 1st adjustment rail surface, 60 stair lift device, 61 4th main rail Member, 62 third adjustment rail member, 63 fourth adjustment rail member

Claims (2)

A lift unit equipped with a motor, a drive gear rotated by the motor, and a plurality of attitude control rollers or guide rollers on the carriage unit that supports the riding unit,
The carriage that is installed over the entire area on the staircase, is provided with a rack that meshes with the drive gear of the elevating unit and a rail surface on which the attitude control roller rolls, and the carriage unit is adjusted to a horizontal attitude and combined. A rail member that moves the lifting unit up and down by combining the part with a straddled state according to the inclination angle of the stairs,
It is a stair lifting device installed on the staircase provided with an angle changing portion that has a different inclination angle with respect to the staircase portion in the middle,
A first posture control roller that is disposed on the lift unit so as to be spaced apart from the carriage in the up-and-down direction and to have an angle difference according to the inclination angle of the stairs to roll on the rail surface of the rail member; The second posture control roller is mounted, and the upper second posture control roller is composed of a first roller portion and a second roller portion provided adjacent to each other in the axial direction,
The rail member is formed with a first rack and a first main rail surface, and a first main rail member installed on the stairs on the lower side of the angle changing portion, a second rack and a second main rail surface. A second main rail member formed on the upper stairs with the angle changing portion interposed therebetween, a third rack and a third main rail surface are formed, and the third rack and the third main rail surface are formed. The lower end side is connected to the first rack and the first main rail surface, and the upper end side is connected to the second rack and the second main rail surface and is installed in the angle changing unit. 3 main rail members and a first adjustment rail surface having the same angle as the first main rail surface of the first main rail member, and a lower end portion of the first main rail surface at a position corresponding to the angle changing portion. It is positioned so as to be adjacent to each other on the side surface of the third main rail member The second main rail surface of the second main rail member at the upper position where the lower end portion is continuous with the first adjustment rail surface and the upper end portion exceeds the angle changing portion. And a side surface of the third main rail member corresponding to the angle changing portion, the second adjustment rail surface being positioned above the third main rail surface and extending in parallel. A second adjustment rail member combined with
In the elevating unit, the drive gear and the first rack or the second rack mesh with each other, and the first posture control roller and the first roller portion of the second posture control roller are the first main rail member or the The staircase is moved up and down by rolling on the first main rail surface or the second main rail surface of the second main rail member, and when reaching the angle changing portion, the second posture control roller side is As the two roller portions roll on the first adjustment rail surface side of the first adjustment rail member or the second adjustment rail surface side of the second adjustment rail member, the posture of the carriage unit changes, and the angle changing unit The stair lift device is also characterized in that it moves up and down while maintaining the horizontal posture of the riding section. A lift unit equipped with a motor, a drive gear rotated by the motor, and a plurality of attitude control rollers or guide rollers on the carriage unit that supports the riding unit,
The carriage that is installed over the entire area on the staircase, is provided with a rack that meshes with the drive gear of the elevating unit and a rail surface on which the attitude control roller rolls, and the carriage unit is adjusted to a horizontal attitude and combined. And a rail member that moves the lifting unit up and down by combining it in a straddled state according to the inclination angle of the staircase,
A first posture control roller that is disposed on the lift unit so as to be spaced apart from the carriage in the up-and-down direction and to have an angle difference according to the inclination angle of the stairs to roll on the rail surface of the rail member; The second posture control roller is mounted, and the upper second posture control roller is composed of a first roller portion and a second roller portion provided adjacent to each other in the axial direction,
The rail member is installed on the stairs such that a first rack and a first main rail surface are formed and adjusted to an inclination angle of the stairs, and an upper end portion is located above a step surface of the upper landing. A first main rail member and a second rack connected to the first rack with respect to the first main rail member, and a second main rail surface connected to the first main rail surface and installed on the upper landing The second main rail member and the first main rail surface of the first main rail member at the same angle as the first main rail surface and the lower end of the first main rail member at a position corresponding to the upper landing. A first adjustment rail member that is positioned adjacent to the rail surface and is combined with a side surface of the second main rail member; and a lower end portion of the first adjustment rail member that is continuous with the first adjustment rail surface and the second main rail member The second main of A second adjustment rail member that is positioned above the rail surface and that extends in parallel and has a second adjustment rail member that is combined with the side surface of the second main rail member corresponding to the upper landing And
The elevating unit meshes with the drive gear and the rack, and the first posture control roller and the first roller portion of the second posture control roller are on the first main rail surface of the first main rail member. When the staircase is moved up and down to reach the upper landing, the second roller portion is on the first adjustment rail surface of the first adjustment rail member on the second posture control roller side. A stair climbing device characterized in that the rider can maintain the horizontal posture of the riding section even on the upper landing by rolling up and rolling the second adjustment rail surface of the second adjustment rail member.

Images